Parameters in EL methods

Question

I want to use a method in JSP using EL that has a parameter. But EL doesn\'t support parameters in methods. Actually I want to show a table, which has a field that output a list

Answer 1

The support for passing method arguments and invoking non-getter methods was introduced in EL 2.2 which is part of Servlet 3.0. So your best bet is to upgrade to a Servlet 3.0 compatible container, such as Tomcat 7, Glassfish 3, JBoss AS 6 and ensure that your web.xml is declared conform Servlet 3.0 spec, so that you can do the following:

    
        ${entrant.idEntrant}
        ${bean.getGroupCode(entrant.idGroup)}
        ${entrant.name}
    

If your container doesn't support it, then your best bet is to create a custom EL function.

        ${some:getGroupCode(bean, entrant.idGroup)}